diff --git a/LKDBHelper.podspec.json b/LKDBHelper.podspec.json
index 2b78cdb..454b2cc 100644
--- a/LKDBHelper.podspec.json
+++ b/LKDBHelper.podspec.json
@@ -1,6 +1,6 @@
 {
   "name": "LKDBHelper",
-  "version": "2.5.5",
+  "version": "2.5.6",
   "summary": "全自动的插入,查询,更新,删除， an automatic database operation thread-safe and not afraid of recursive deadlock",
   "description": "全面支持 NSArray,NSDictionary, ModelClass, NSNumber, NSString, NSDate, NSData, UIColor, UIImage, CGRect, CGPoint, CGSize, NSRange, int,char,float, double, long.. 等属性的自动化操作(插入和查询)",
   "homepage": "https://github.com/li6185377/LKDBHelper-SQLite-ORM",
@@ -10,7 +10,7 @@
   },
   "source": {
     "git": "https://github.com/li6185377/LKDBHelper-SQLite-ORM.git",
-    "tag": "2.5.5"
+    "tag": "2.5.6"
   },
   "platforms": {
     "ios": "5.0",
diff --git a/LKDBHelper/Helper/LKDBHelper.m b/LKDBHelper/Helper/LKDBHelper.m
index 525020a..cb37cb9 100644
--- a/LKDBHelper/Helper/LKDBHelper.m
+++ b/LKDBHelper/Helper/LKDBHelper.m
@@ -64,6 +64,8 @@ @interface LKDBHelper ()
 @property (nonatomic, assign) BOOL runingAutoCloseTimer;
 @property (nonatomic, assign) NSInteger autoCloseDBDelayTime;
 
+@property (nonatomic, assign) BOOL inAutoReleasePool;
+
 @end
 
 @implementation LKDBHelper
@@ -1093,14 +1095,25 @@ - (NSMutableArray *)executeOneColumnResult:(FMResultSet *)set {
     return array;
 }
 
-- (void)foreachResultSet:(FMResultSet *)set block:(void(^)(void))block {
-    while ([set next]) {
+- (void)inAutoReleaseExecuteBlock:(void(^)(void))block {
+    if (self.inAutoReleasePool) {
+        // 已在 @autoreleasepool 范围内
+        block();
+    } else {
         @autoreleasepool {
+            self.inAutoReleasePool = YES;
             block();
+            self.inAutoReleasePool = NO;
         }
     }
 }
 
+- (void)foreachResultSet:(FMResultSet *)set block:(void(^)(void))block {
+    while ([set next]) {
+        [self inAutoReleaseExecuteBlock:block];
+    }
+}
+
 - (NSMutableArray *)executeResult:(FMResultSet *)set Class:(Class)modelClass tableName:(NSString *)tableName {
     NSMutableArray *array = [NSMutableArray arrayWithCapacity:0];
     if (!modelClass) {
@@ -1165,19 +1178,19 @@ - (NSMutableArray *)executeResult:(FMResultSet *)set Class:(Class)modelClass tab
 
 #pragma mark - insert operation
 - (BOOL)insertToDB:(NSObject *)model {
-    BOOL success = NO;
-    @autoreleasepool {
+    __block BOOL success = NO;
+    [self inAutoReleaseExecuteBlock:^{
         success = [self insertBase:model];
-    }
+    }];
     return success;
 }
 
 - (void)insertToDB:(NSObject *)model callback:(void (^)(BOOL))block {
     LKDBCode_Async_Begin;
-    BOOL success = NO;
-    @autoreleasepool {
+    __block BOOL success = NO;
+    [sself inAutoReleaseExecuteBlock:^{
         success = [sself insertBase:model];
-    }
+    }];
     if (block) {
         block(success);
     }
@@ -1290,19 +1303,19 @@ - (BOOL)insertBase:(NSObject *)model {
 
 #pragma mark - update operation
 - (BOOL)updateToDB:(NSObject *)model where:(id)where {
-    BOOL success = NO;
-    @autoreleasepool {
+    __block BOOL success = NO;
+    [self inAutoReleaseExecuteBlock:^{
         success = [self updateToDBBase:model where:where];
-    }
+    }];
     return success;
 }
 
 - (void)updateToDB:(NSObject *)model where:(id)where callback:(void (^)(BOOL))block {
     LKDBCode_Async_Begin;
-    BOOL success = NO;
-    @autoreleasepool {
+    __block BOOL success = NO;
+    [sself inAutoReleaseExecuteBlock:^{
         success = [sself updateToDBBase:model where:where];
-    }
+    }];
     if (block) {
         block(success);
     }